On the heals of losing the last stand to the PBMs with the Express Scripts debacle, Walgreens sold itself to Stephano Pessina (Boots) using Walgreens money.
Remember Stephano has said repeatedly that he does not understand how to serve customers but understands "how to make deals."
Taking Walgreens private has been his plan since 2014. And he has done this sort of thing to his previous companies.